This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. A trestle or system of trestles, as that supporting a bridge.

n. a system of trestles, especially one used to support a bridge

n. A viaduct, pier, scaffold, or the like, resting on trestles connected together.

n. A series of trestles and connected framing, supports, etc., forming a viaduct, as for a railway.

n. a supporting structure composed of a system of connected trestles; for a bridge or pier or scaffold e.g.

"His shadow is carried strained coarsely back through the network of wood inside the stable-beams, lodgepoles, stall uprights, trough-trestlework, rafters, wood ceiling-slats the sun comes through: blinding empyrean even at this failing hour of the day."

structure    construction